美国共和党议员提案禁双重国籍，“最激进”公民身份改革能成吗

Core Viewpoint - The article discusses a new proposal by Senator Bernie Moreno aimed at prohibiting U.S. citizens from holding dual citizenship, requiring them to renounce their foreign nationality or risk losing their U.S. citizenship [3][5]. Legislative Proposal - The proposal, titled the "2025 Exclusive Citizenship Act," mandates that dual citizens must relinquish their foreign nationality within one year of the law's enactment, or they will be considered to have voluntarily given up their U.S. citizenship [3][4]. - The proposal is currently under review by the Senate committee, and it remains uncertain whether Republican members will advance it [4]. Current Legal Context - U.S. law and Supreme Court rulings have historically allowed dual citizenship, with cases like "Afroyim v. Rusk" establishing that U.S. citizens cannot lose their citizenship unless they voluntarily renounce it [5]. - It is estimated that tens of millions of U.S. citizens qualify for dual citizenship, including many individuals from Mexican and other immigrant backgrounds [5]. Implementation Requirements - The proposal requires the U.S. Department of State and the Department of Homeland Security (DHS) to create a database and establish rules to track and enforce the changes to citizenship law [5][7]. - Within 180 days of the law's enactment, the Secretary of State must issue regulations related to the declaration, verification, and record-keeping of citizenship [7]. Legal Challenges - Legal experts suggest that any law mandating U.S. citizens to renounce foreign citizenship could face significant legal scrutiny [8]. - Concerns are raised regarding the feasibility of compliance, as some countries do not permit citizens to renounce their nationality, complicating the situation for those who may wish to comply with the proposed law [9].